productscoating thicknessglosssurface profileoven profileenvironmentalinspection kitsdust / salt contaminationpositector smartlinkadhesion testingair leak testingconcrete moistureverification standardswall thicknessposisoft softwarehardnessaccessoriespinhole / holidayabout usresourcessalesservice & supporttechnical supportservice & calibrationpositrackgage updatestroubleshootingenesdefritptzhjanlarkrsearch-iconquote-icon×by using our site, you agree to our cookie policy.about defelskocontactwhat's new?rightarrow-iconquick navigation quick navigationabout defelskocontactwhat's new?rightarrow-iconquick navigation quick navigationabout defelskodefelsko corporation, a leading u.s. manufacturer of coating thickness gages and inspection instruments, has been delivering simple, durable and accurate gages since 1965. family owned and operated in northern new york, its state of the art facility houses research, development, manufacturing, quality, sales, training and service departments.over the years, defelsko has pioneered many technologies including:the first combination ferrous/non-ferrous gage to automatically recognize the substrate and take a measurementthe first hand-held ultrasonic coating thickness gage for non-metal substrates including plastic, wood, and concretethe first fully-interchangeable inspection instrument, featuring compatibility with coating thickness, dew point, surface profile, soluble salt, ultrasonic wall thickness and hardness probesthe first iso-compliant salt contamination measurement method, with no sharps or adhesivethe first hand-held, field-ready instrument for 3d-imaging of blasted surfaces and measurement of peak density and other variablesstarting with the mechanical positest fm and gm, defelsko has shown a commitment to excellence in manufacturing and after sales support.